Flaky test test_ensure_task_limit_window_passed

Try to make the test less flaky by making the iteration wait time equal to the
exception_limit_window and reducing the exception_limit from 3 to 2. This
should still catch the case in question, but be less timing dependent.

Author: masenf

tests/units/utils/test_tasks.py

@@ -90,8 +90,8 @@ async def faulty_coro():
         coro_function=faulty_coro,
         suppress_exceptions=[ValueError],
         exception_delay=0,
-        exception_limit=3,
-        exception_limit_window=0.1,
+        exception_limit=2,
+        exception_limit_window=0.05,
     )
 
     with contextlib.suppress(asyncio.CancelledError), pytest.raises(RuntimeError):